Load all top-level Vue components asynchronously #2864
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Font Awesome is currently responsible for the majority of our overall Vue bundle size because it includes all of the available icons in the main bundle. This PR removes the global icon library in favor of per-component includes. The end result is that the main bundle size is reduced by 75%+. As part of this work, I fixed an issue with the webpack runtime configuration which was missed in #2864.
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#2864 introduced Webpack bundle splitting. While the chunk names are based on a rolling integer number in production, they are deterministically computed based on the filename in development. Browser caching causes this to be annoying in development. This PR changes the naming scheme to instead depend on the content hash, eliminating the issue.
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We currently build all of our full-page components and all of their dependencies into a single bundle. This means that our bundle size will continue to grow and download sizes will increase as we convert more pages to Vue. In the interest of maintaining a reasonable bundle size, this PR uses Vue's async components to achieve bundle splitting, loading only the chunks needed for a given page.